<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <STYle>
    font{
            color: aqua;
            font-size: 55px;
    }
    </STYle>
    <script>
       
        alert('Can you watching me ? motherfuker')
    </script>
</head>
<body>
    this is my frist html,happy!
    <font>中华人民共和国</font>
    <script src="./第一节课js.js">
    </script>
</body>
</html>